✨ feat(vscode): Rust 的模块、常量和外部函数拆成卡片

vscode/src/codeReader/contract.ts

@@ -12,7 +12,7 @@ export type { Node }
  */
 export type BlockKind
   = | 'import' | 'function' | 'class' | 'enum' | 'exception' | 'type' | 'field' | 'const' | 'variable'
-    | 'trait' | 'impl'
+    | 'trait' | 'impl' | 'module'
     | 'if' | 'else' | 'loop' | 'try' | 'catch' | 'finally' | 'return' | 'statement' | 'comment'
     | 'interpreter' | 'options' | 'case' | 'command' | 'pipeline'
     | 'directive' | 'stage' | 'run' | 'copy' | 'setting' | 'label' | 'health' | 'start'
@@ -479,6 +479,7 @@ export interface ClassBlock extends BlockShape { kind: 'class', facts: ClassFact
 export interface TraitBlock extends BlockShape { kind: 'trait', facts: ClassFacts }
 /** Rust 的 impl：标题是「某类型 的方法」，方法是子块，放进方法表的某一行。 */
 export interface ImplBlock extends BlockShape { kind: 'impl', facts: ClassFacts }
+export interface ModuleBlock extends BlockShape { kind: 'module', facts: ClassFacts }
 /** 枚举块的头部是整个枚举（成员都在属性表里讲），没有子块；库规则认出来的枚举（Python）是整个类，留下的方法等是子块。 */
 export interface EnumBlock extends BlockShape { kind: 'enum', facts: EnumFacts }
 /** 异常块的头部是整个类（类属性都在属性表里讲），留下的方法（含构造函数）等是子块。 */
@@ -496,7 +497,7 @@ export interface StageBlock extends BlockShape { kind: 'stage', facts: StageFact
 export interface HealthBlock extends BlockShape { kind: 'health', facts: HealthFacts }
 export interface StartBlock extends BlockShape { kind: 'start', facts: StartFacts }
 export type FactBlock
-  = | FunctionBlock | ClassBlock | TraitBlock | ImplBlock | EnumBlock | ExceptionBlock | ImportBlock | VariableBlock | InterpreterBlock | OptionsBlock
+  = | FunctionBlock | ClassBlock | TraitBlock | ImplBlock | ModuleBlock | EnumBlock | ExceptionBlock | ImportBlock | VariableBlock | InterpreterBlock | OptionsBlock
     | DirectiveBlock | StageBlock | HealthBlock | StartBlock
 
 /** 带说明（facts.doc）的块。 */
@@ -826,6 +827,7 @@ export const KIND_ICONS: Record<BlockKind, KindIconName> = {
   class: 'box',
   trait: 'network',
   impl: 'square-function',
+  module: 'layers',
   type: 'braces',
   enum: 'list-ordered',
   exception: 'triangle-alert',